Malicious PDF — malware analysis report

Static analysis result for SHA-256 1834b34b3efd4fa4…

MALICIOUS

PDF

49.8 KB Created: 2020-08-07 18:58:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 70e13cf1d8d981764654b018c8e59942 SHA-1: 8969cdf406f7e279a4a9096aee7df58ea618cf63 SHA-256: 1834b34b3efd4fa4cc70efdcebb57c1e825a7971f87902a2beedef97b138ceaa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body and embedded links suggest a lure to download further malicious content, likely a second-stage payload. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=research+budget+sample+pdf In PDF document text
    • http://files.markparadispolitics.com/uploads/1/3/0/9/130969993/nuvomejemesu.pdfIn PDF document text
    • http://files.sauvageraven.com/uploads/1/3/1/4/131452958/risegozon-nofobokawuvujew-wonezufanobu.pdfIn PDF document text
    • http://virag.redriverministries.com/uploads/1/3/0/8/130874284/7058897.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luvibuxunefipefijuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0999/0043/files/arithmetic_progression_word_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6182/0054/files/42364851149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/mutamejinigasoramufinileb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6523/6901/files/8899483567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6696/4630/files/varosizatakuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/333026451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4017/0406/files/dosumuzisebojazeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6929/3223/files/mojow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9289/2061/files/pawosakalut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8937/1029/files/modubebuseton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4803/4716/files/mibaxemulamevajufulepuj.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8245 5716 bytes
SHA-256: 64e42d9ddee41ff8b1a0458242c393a596ad44aa7d583b3b8a0edeec23510c13
font_01_sfnt_off0000958e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x958E 10704 bytes
SHA-256: 14b981a0564faee592cf4c7593bc25b82b8a778c52aa1564c225e986e5346bde

Open this report in the interactive analyzer, or submit your own file for analysis.